<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript"></script>
<script type="text/javascript" src="../../script/jquery-1.7.2.js"></script>
<script type="text/javascript">

        window.onload=function () {
		    alert("原生js的页面加载完成之后")
        }


        $(function () {
			alert("jquery的页面加载完成之后")
        })

</script>
</head>
<body>
	<button>我是按钮</button>

e>	<iframe src="http://www.baidu.com"></iframe>
	<img src="http://www.baidu.com" alt=""/>
	
</body>
</html>